Rag-dusting machine



No. 153,213. PATENTED FEB. 23, 1904. w. H. SANBURN. RAG DUSTING MACHINE.

APPLICATION FILED JULY 27, 1903.

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No. 753,213. I I PATENTED FEB. 23, 1904. W. H. SANBURN. 7 RAG DUSTING MACHINE.

APPLICATION FILED JULY 27, 1903,

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PATENTED FEB. 23, 1904.

W. H. SANBURN. RAG DUSTING MACHINE.

APPLICATION FILED JULY 27, 1903.

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hausted from the apparatus and whereby but- UNITED STATES Patented February 23, 190 4.

PATENT OFFICE.

RAG-DUSTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 753,213, dated February 23, 1904.

Application filed July 27, 1903.

To all whom; it may concern:

Be it known that I, Wrens H. SANBURN, a citizen of the United States of America, and a resident of Mittineague, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Rag-Dusting Machines, of which the following is a full, clear, and exact description.

This invention relates to improvements in machines for dusting rags designed to be used for the making of paper, the object being to provide an apparatus within which a quantity of the rags may be placed and therein subjected to a threshing action, whereby the dust and dirt may be dislodged therefrom and extons, other metallic fastenings, and the like may be stripped from the rags and either withdrawn from the apparatus or so lodged therein as not to be discharged therefrom with thethreshed rags; and the invention consists in the constructlons and combinations or arrangements of parts, all substantially as hereinafter described, and set forth in the claims.

The improved apparatus is illustrated in the accompanying drawings, in which Figure 1 is a front elevation. Fig. 2 is an end elevation. Fig; 3 is a cross-section as taken on the line 3 3, Fig. 1. Fig. 4 is substantially a central longitudinal vertical section through the apparatus as taken on line 4 4:, Fig. 2. Fig. 5 is a perspective view showing a portion of one of the gangs of the bars, a number of which constitute the open-work grate-like bed of the apparatus. Fig. 6 is a perspective view of one of the duplicated projections on the rotary thresher-body Similar characters of reference indicate cor-' V responding parts in all of the views.

In the drawings, A represents a housing of c a general rectangular or other suitable form,

within which is longitudinally and horizontally mounted a rotatable body B in the form of a closed cylinder, having a plurality of outwardly-projecting beater or threshing projections a, the central shaft C of the cylinder being mounted in suitable journal-bearings at the opposite ends of the housing and provided withfixed and loose pulleys b. In the lower portion of the housing are partitions d,

Serial No. 167,082. (Nomodeh) constituted of transversely-arranged boards,

the upper edges of all of which are uniformly concave, as are also the upper edges of the boards d at the ends, and supported thereon is.

a concave grating or open-work bed E, in proximity to which the revoluble threshing projections a pass in their revoluble movements. The said grating or open-work bed is constituted by series of separated and longitudinally-parallel bars f f, arranged edgewise upward and having spacing-blocks g g, which hold them in separation, gangs of these parts being united by the curved tie-rods h, the ends of which are riveted or otherwise made for clamping engagements. Certain of the said bars at intervalsare, as shown in Figs. 3 and 5, longer and farther upwardly projected than the relatively intermediate ones, and the gangs of these separated and tied bars are supported by resting on the upper concave edges of the aforementioned partitions and end portions cl (5 whereby the grate-like bed having a concaved contour, as shown, is produced. The spaces G below partitions are utilized as suction-chambers, individual pipe connections iii, with the common suction-conduitj, beingprovided. Suitable apertures is are provided through the wall or walls of the housing for the admission of air thereinto, and mindicates a rag-entrance opening, and It a rag-dischargin g opening, the opening mvbeing closed by the'sliding door 0, while, the opening n is closed by the swinging door 9.

Located in an upper part of the housing in proximity to the paths of revoluble movement of the threshing projections a is a longitudinally-ranging horizontal bar J, which advantageously may be of I form in crossseotion, whereby the angular portions thereof are presented to the passing projections a, and between such bar, which is below the top of the housing and the top thereof, is a screen q. The opening an has a downwardly-leading chute t to guide the rags properly into the receptacle, and the closing door 0 for the opening moves in vertical slideways 0 and has a cord 0 therewith connected, the same being sheaveguided and counterweighted. The other door is shown as hinged at its upper edge and has the bed and between the a counterweighted handle-lever u therewith connected, and there are three bolt-rods 4;, arranged for movements in the directions of their lengths, to engage into and disengage from sockets w on the outer side of the housing near the margins of the opening 12. The inner ends of the several bolt-rods are connected to a pivotally-mounted disk :10 on the outer face of the door 12, said disk having a lever extension 00 to which a hand-rod m is connected, so that when the door is in its closed position the endwise movements of the hand-rod will cause the locking or unlocking ofthe door.

VA quantity of rags being introduced into the apparatus, the rotatable body or cylinder B is speeded, the radially-extending projections a a thresh, knock, and tumble the rags around within the housing, and the rags, by being thrown against the bar J, are retarded in their revoluble movements and thereby subjected to increased threshing action'by the rapidly-turning projections a, and by being thrown up against the screen with more or less violence the dust therein is thrown through the screen, settling into the bottom of the machine and withdrawn through the suction-conduit, as is also much of the dust and dirt which is withdrawn from the rags while agitated and before the same are carried against the upper screen. It is to be especially explained that the open-work or grate-like bed below and in proximity to the threshing members by reason of having some of the bars thereof longer than others, as pointed out, is very efficient for stripping, as the rags are dragged over and past them, buttons, buckles, or other metallic fastenings which may be secured to the rags therefrom, such metallic parts generally falling through the grating and being withdrawn through the suction-chambers and conduit, or, if unusually large, lodging in the grate, so that they maybe extracted-once in a while when the machine is cleaned. After the rags'have been subjected to the suffi ciently protracted threshing action the door 10 is swung open and the rags will be driven out from the machine,

whereupon such door will be closed and locked, the opposite door will be opened, and a new quantity of rags introduced into the machine, and the door 0 will then also be closed during the time of threshing and cleansing the new batch of rags.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a machine for dusting rags, in combination, a housing having, in a lower portion housing,

thereof, a concave grating, provided with upwardly-projecting members, a longitudinallyextending bar located-in an upper part of the and a rotatable body having outwardly extending projections arranged in their revoluble movements to pass in proximity to said grating and to said bar, and a suction-chamber and suction-conduit below the grating.

2.- In a machine for dusting rags, in combination, a housinghaving, in a lower portion thereof, a concave grating provided with upwardlyprojecting members, a rotary body mounted to turn within the housing having radial projections, a longitudinal bar arranged within the housing below its top and above the path of revoluble movement of said radial projec-v tions, and ascreen extending between the top of said bar and the top of the housing.

3. In a rag-dusting machine, in combination, a housing having a rag-entrance and a rag-discharge opening, and closing means therefor, and having, in a lower portion thereof, a plurality of separated upwardly-extending partitions, the upper edges of which are of concave form, the curvature of each corresponding to that of the others, a suction-chamber in the lower portion of the housing, a plurality of grating sections or gangs composed of longitudinally-parallel bars having spacingblocks therebetween, and curved bolts or tierods penetrating and holding together the series of bars and spacing-blocks, said gangs of said separated connected bars being supported on the upper edges of said partitions constituting a concave grating-bed next above the suction-chamber, and a rotatable body mounted to turn within the housing, having outwardlyextending projections, the ends of which are revoluble in'proximity to the said grating-bed, for the purpose set forth,

4. In a ragdustingmachine,in combination, a housing havinga rag-entrance and a ragdis charge opening, and closing means therefor, and having, in a, lower portion thereof, a plurality of separated upwardly-extending partitions, the upper edges of which are of concave form, the curvature of each corresponding to that of the others, a suction chamber in the lower portion of the housing, a plurality of grating sections or tudinally parallell bars, some of which are further upwardly extended than others, having spacing-blocks therebetween, and curved tie-rods penetrating and holding together the series of bars and spacing-blocks, and said gangs of said partitions constituting a concave grating-bed next above the suction-chamber, and a cylinder mounted to turn within the housing, having outwardly-extending projections, the ends of which are revoluble in proximity to the said grating-bed, for the purpose set forth.

gangs composed of longi- 1 Signed by me at Springfield, Massachusetts,

'in presence of twosubscribing witnesses.

WILLIS H. SANBU'RN. Witnesses:

WM. S. BnLLows, A. V. LnAHY. I 

